Members of cross-party working group on sexual harassment say proposals do not sufficiently protect those making accusations against MPs

Theresa May’s plan to toughen up sexual harassment policies at Westminster has run into criticism by some members of the working group created by the prime minister because it will not sufficiently protect those making accusations against MPs.

Some MPs involved with the discussions told the Guardian they were unhappy that the current proposals are based on a mechanism designed to deal with employment grievances, rather than swift investigation of MPs accused of sexual wrongdoing.